About Summit ATR
Summit ATR is a certified Polaris Adventures outfitter located on Gallatin Road with a unique advantage that sets them apart from other motorised adventure operations in the Big Sky area: direct trailhead access. This means riders can gear up at the facility and ride directly onto the trail system without the delay and hassle of loading machines onto trailers and driving to a distant trailhead. It is a significant convenience that maximises ride time and minimises logistics.
The winter snowmobile fleet consists of late-model Polaris machines — powerful, reliable, and equipped with the latest technology for comfort and handling in mountain terrain. Guided tours take riders through the spectacular Gallatin Canyon backcountry, where deep snow, forested valleys, and mountain ridgelines create a riding experience that showcases Montana's winter beauty at its finest. Self-guided options are available for experienced riders who want to set their own pace and explore independently on the designated trail network.
Summer transitions the operation to side-by-side UTV adventures, with Polaris RZR and Ranger vehicles available for exploring the canyon's network of backcountry roads and trails. These versatile machines handle a wide range of terrain, from smooth forest roads to rocky mountain tracks, and accommodate two to four passengers depending on the model. The direct trail access advantage carries over to summer, putting riders onto scenic routes within minutes of arrival.
As a certified Polaris Adventures outfitter, Summit ATR maintains their fleet to the manufacturer's highest standards and their guides receive specialised training in machine operation, trail safety, and backcountry navigation. All necessary safety gear is provided, and thorough orientation sessions ensure that every rider — from first-timers to experienced operators — is confident and prepared before hitting the trail. For motorised backcountry adventures near Big Sky with maximum convenience and quality equipment, Summit ATR is a top choice.
